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    cable calculation

    Hi Just look for a bit of guildence on a job coming up. Its a big 5 bedroom house where i think it may be cable runs of over 104 meters and was just wondering if anyone could give me advice on the best way to do this. Should i split the runs down more into shorter circuits or should i just up...
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    How to support cable

    Hi i have a question for the forum about how to support cable? the problem is i have been to look at a job for a customer who would like to renew the cable from the house to the garage. The garage is 10 meters from the house and the drive is all block paving (so underground not option). The...
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    Prospective Fault Current

    Hi all having a problem understanding PFC I tested a CU today and the result I got was 19A. It was a TT system and the Ze was 52.5 also all MCB were rated 6K, main income fuse 1361 type 2 with a 230v supply. My question is which of these results I check the PFC with. Could you please explain the...
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    insulation test

    Hi just a quick question about insulation resistance test that is bugging me. Why when carrying out an insulation resistance test does the meter climb slowly sometimes and other time gives a result straight away. Also what is the minimum result you would expect from a brand new house? Added a...
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    telephone point question

    hi everyone need a bit of help with a rewire i start next week. the customer has asked me to put in a telephone point other that the master point. the problem is i have never done this before. the first question is am i allowed to connect to the master or only Bt allowed. if it is ok to carry...
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    extra low voltage spot lights

    hi could anyone help please i'm cofused by extra low voltage spot lights 12v when and where are they required. it was my understanding that they are used in special location within zone 0, 1 and 2. however i see them everywhere kitchens bedrooms. is this just good practise to use them? also GU...
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    thermostatic control towel rail

    Hi everyone just a quick question about a electric heater towel rail. I ordered a Firenze Curved Electric Heated Towel Rail H1100mm W600mm for a customer and it has very basic instruction with it. The problem is can i connect some sort of thermostatic control at the fuse connector as it just has...
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    17th edition questions

    hi i'm revising for my 17th edition and having problem with a couple of question. know the answer but don't understand how to get there. any help i would be greatful i have supplied the question and the answer but i don't understand how to get this answer could you please explain. 20 The fault...
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    17th edition test questions

    hi i'm revising for my 17th edition and having problem with a couple of question. know the answer but don't understand how to get there. any help i would be greatful i have supplied the question and the answer but i don't understand how to get this answer could you please explain. 20 The fault...
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    calculate the minimum value of the cross-sectional-area

    Hi this is the first time on the forum so i would like to say hello to everyone. My name is noel I
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